来自鼓索神经、舌咽神经和迷走神经的兴奋性输入在猫的上泌涎核神经元上的汇聚。

Convergence of excitatory inputs from the chorda tympani, glossopharyngeal and vagus nerves onto superior salivatory nucleus neurons in the cat.

作者信息

Murakami T, Ishizuka K, Uchiyama M

机构信息

Department of Oral Physiology, Nippon Dental University, School of Dentistry, Niigata, Japan.

出版信息

Neurosci Lett. 1989 Oct 23;105(1-2):96-100. doi: 10.1016/0304-3940(89)90018-9.

DOI:10.1016/0304-3940(89)90018-9

PMID:2485891

Abstract

Superior salivatory nucleus (SSN) neurons were identified by antidromic spike responses to stimulation of the chorda tympani nerve, and were tested to stimulation of the ipsilateral chorda tympani, glossopharyngeal, vagus and lingual nerves in urethane-chloralose anesthetized cats. In 48 SSN neurons identified, 33 (69%) responded with spikes to stimulation of at least one of these nerves, and 24 (50%) were excited with inputs from more than one stimulated nerve. The mean latencies of the reflex responses to stimulation of the chorda tympani, glossopharyngeal, vagus or lingual nerve were 13.2, 18.9, 24.6 or 11.4 ms, respectively.

摘要

在氨基甲酸乙酯-氯醛糖麻醉的猫中，通过对鼓索神经刺激的逆向动作电位反应来识别上涎核（SSN）神经元，并测试其对同侧鼓索神经、舌咽神经、迷走神经和舌神经刺激的反应。在48个被识别的SSN神经元中，33个（69%）对这些神经中至少一根神经的刺激产生动作电位反应，24个（50%）因来自一根以上受刺激神经的输入而兴奋。对鼓索神经、舌咽神经、迷走神经或舌神经刺激的反射反应的平均潜伏期分别为13.2、18.9、24.6或11.4毫秒。